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. 2020 Apr 23;15(4):e0231659. doi: 10.1371/journal.pone.0231659

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© 2020 Wickramasuriya, Faghih

This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

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Fig 4 — The sub-panels from top to bottom respectively depict, (a) the skin conductance signal z_k; (b) the phasic component with the detected SCR peaks; (c) the phasic-derived component r_k; (d) the tonic component s_k. m_k = 1 or m_k = 0 is assigned based on whether or not an SCR occurred at the k^th time-point. We make use of the observations m_k, r_k and s_k at each time point to estimate x_k.